Steven Sierra posted notes about alleged infidelity on Instragram in the days before his wife left for Turkey, according to published reports.Staten Island Advance/Jan Somma-Hammel

STATEN ISLAND, N.Y. -- In the days before Sarai Sierra left for Turkey, her husband used his Instagram account to post messages about alleged infidelity, according to published reports.

"Don't cheat in relationship(s)," Steven Sierra wrote in one posting on Dec. 28, 10 days before his wife left on her solo journey to Istanbul to follow her love of photography, the Daily News reported.

A second posting on the same day read: "A real relationship is where you tell everything & anything. No secrets, no lies," according to the report in the News.

On Jan. 7 -- the day Ms. Sierra left -- he posted another note on Instagram, the News reported.

"Good relationship(s) don't just happen. They take time, patience and two people who truly want to be together."

According to a report in the New York Post, Sierra left this message on Istagram five days before his wife was set to return: "People are to be LOVED. Things are to be USED. The reason why the world is in chaos is because THINGS are being LOVED and PEOPLE are being used."

Sierra said his wife insisted on going to Turkey and that he accepted her wishes, the Post reported, citing a story in the Turkish paper, Hurriyet.

"I had to permit her to go," he told the Turkish paper. "She was very insistent on going. In such situations, you have to support your wife."

Turkish media have also reported that Ms. Sierra's brother warned her against cheating and urged her to leave her husband, according to story in the Post.

Ms. Sierra left for Istanbul on Jan. 7 to explore her photography hobby,
and made side trips to Amsterdam and to Munich, Germany.

She was last in contact with her family, via Skype, on Jan. 21, the day she was to return home.

The 33-year-old was reportedly spotted with a
strange male that day.

Meanwhile, none of the DNA taken from 22 suspects matches
that recovered from the scene where her body was found on Feb. 2.

Initial reports said that a man known
as "Taylan," met Ms. Sierra on Jan. 13 by the Galata Tower. Taylan told
police that he had sexual intercourse with her.

Reports say she
developed an "Internet" friendship with the man several months before
her trip.

He was released as a suspect after questioning by Turkish authorities.